Math Central - mathcentral.uregina.ca
Quandaries & Queries
Q & Q
 More on lampshades from a cone 2019-12-14 From Guy:from an earlier post re; lampshade from a cone Being math ignorant I cannot figure out how this equation makes sense $\frac{2\pi \times 33 - 2\pi \times 20}{2\pi \times 33} = \frac{13}{33}$ imagine these as fractions multiplied by 360 to calculate a section of a circle to form a cone ThxAnswered by Penny Nom. A lampshade shape 2006-02-11 From Rose:Is there a solid shaped like a lampshade? Or do you just call it the bottom portion of a cone?Answered by Penny Nom. A lampshade from a cone 2002-11-26 From Ellsie:I need to make a pattern to cover an old lampshade. This is actually the bottom portion of a cone. Please help me figure out how to draw this pattern, so that we can complete our project.Answered by Penny Nom.